The RHQ Server and Agent are supported on Linux and Windows operating systems, and on x86_64, i686, and ia64 architectures. We support other platforms that support Java 6, but native support must be disabled; however, this limits functionality of the RHQ Agent.
Support for 64-bit is limited to Linux on x86_64; RHQ is supported on other 64-bit platforms only when the OS is in 32-bit compatibility mode.
Clocks on RHQ Servers and Agents need to be in synchronized; to keep them synchronized, a tool such as NTP is highly suggested.
RHQ requires Java 6 or higher in order to run both the RHQ Server and the RHQ Agent; either a JRE or a JDK can be used. Java must be installed on all machines monitored with an Agent, as well as on the machines hosting RHQ Servers. On Linux systems, OpenJDK, Oracle/Sun Java, or JRockit should all work. GNU libgcj is not supported. On other OS's, use the recommended Java 6 implementation.
After downloading and installing the latest JRE or JDK, set the JAVA_HOME environment variable to its installation directory. Try to avoid spaces in your Java installation path there. Alternatively, you can set the RHQ_SERVER_JAVA_HOME environment variable for Servers or the RHQ_AGENT_JAVA_HOME environment variable for Agents.
RHQ 3 and below also supported Java 5. RHQ 4 and later no longer supports Java 5.
In order to run RHQ, an external database must be installed.
The supported databases are:
After installing the database, make note of the JDBC URL, username and password for the database. This information is required during the RHQ Server installation.
The username that RHQ will use to connect to the database must be the owner of the RHQ tables. If this is not ensured, server errors will occur (for example, some tables will be periodically truncated and database servers usually require the user issuing the TRUNCATE statement to be the owner of the table being truncated).
Postgres versions 8.3.x through 9.1.x are supported. Instructions for installing and configuring your Postgres instance can be found here.
Oracle 11g is supported. Oracle 10g is supported but deprecated. Instructions for installing and configuring your Oracle instance can be found here.
See the RHQ Browsers page for the current list of browsers that RHQ supports.